Skip to content

Atlas / NTSB / WPR20CA055

NTSB CAROL · Event

Event WPR20CA055

2019-12-31 Elk, California, United States Airport · LLR None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

The pilot's failure to arrest the descent rate during an aborted simulated engine-out approach, which resulted in impact with vegetation and a subsequent cartwheel.

Factual narrative

The pilot reported that after he completed an aerial observation flight, he decided to conduct a simulated engine out approach to an open field. When the airplane was about 40 ft above ground level, the pilot aborted the approach by applying full engine power and elevator backpressure. The pilot stated that the descent was not immediately arrested, but the airplane seemed to be accelerating. As the airplane continued to descend, it slipped to the left and the left main landing gear struck a bush which induced more left yaw and loss of lift. Subsequently the wing struck vegetation and terrain and the airplane cartwheeled before it came to rest upright. The airplane sustained substantial damage to the wings and fuselage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot reported that, after he completed an aerial observation flight, he decided to conduct a simulated engine-out approach to an open field. When the airplane was about 40 ft above ground level, the pilot aborted the approach by applying full engine power and elevator backpressure. The descent was not immediately arrested, but the airplane seemed to be accelerating. As the airplane continued to descend, it slipped left, and the left main landing gear struck a bush, which induced more left yaw and loss of lift. Subsequently, the wing struck vegetation and terrain, and the airplane then cartwheeled and came to rest upright. The airplane sustained substantial damage to the wings and fuselage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Descent rate-Not attained/maintained - C
  • C Environmental issues-Physical environment-Object/animal/substance-Tree(s)-Effect on operation - C

Verbatim from NTSB's published report. Source file NTSB_2019_WPR20CA055.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗